body {
	-webkit-text-size-adjust: 100% !important;
	text-size-adjust: 100% !important;
	-moz-text-size-adjust: 100% !important;
}

body {
	background-color: #f7f7f7;
}
*{
	padding: 0;
	margin: 0;
	-webkit-tap-highlight-color: transparent;
	/*清除点击默认的高亮效果*/
	-webkit-box-sizing: border-box;
	/*以你的border开始计算宽度*/
}

.gray{
	color: gray;
}